beam 3
noundomain: natural phenomenon
Princeton WordNet [ver.3.1]
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EnglishDefinition
a group of nearly parallel lines of electromagnetic radiation
Hypernym
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
EnglishHyponym
cathode ray 1
noun
a beam of electrons emitted by the cathode of an electrical discharge tube
particle beam 1
noun
a collimated flow of particles (atoms or electrons or molecules)
